package com.student.service;

import com.student.entity.User;

import java.io.Serializable;

/**
 * Created by dongge on 16/9/24.
 */
public interface UserService {
    User get(Serializable id);
    void save(User user);
    void delete(Serializable id);
    void update(User user);
    User getUserByUsername();
}
